Herbert a



H. A. CARHART.

TYPE WRITING MACHINE.

APPLICATION FILED MAY16.I916.

Patented Aug. 22, 1916.

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@ MJM HIS 'ATTIJRNEY UNITED STATES PATENT OFFICE.

HERBERT A. CARHART, OF SYRACUSE, NEW YORK, ASSIGNOR TO REMINGTON TYPE-WRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Application filed May 16, 1916.

1 0 all 7071/0777, it may concern...

Be it known that I. Hnnnnn'r A. Caninvn'r, citizen of the United States,and resident of Syracuse. in the county of Onondaga and State of NewYork, have invented certain new and useful Improvements in Type-\Vritingl lachines. of which the following is a specification. l

My invention. relates to typewriting ma chines and more particularly tothe work holding and 'leeding mechanisms of such machines.

My invention has for its principal object to provide improved means forholding and feeding certain classes of work. especially envelops andcards. including the sort of stencil cards that are used in addressinginachines. l have provided an improved contrivance of this characterwhich is simple in construction. and which can be readily applied toexisting machines without modifying the parts of said machines asheretofore manufactured, except by removing some of said parts bodilyand substituting my mechanism.

To the above and other ends which will hereinafter appear. my inventionconsists in certain features of construction and combinations andarrangements of parts, all of which will be fully set forth herein andparticularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a left-hand side elevation ofthe upper rear part of a typewriting machine having my inventionembodied therein. the parts being shown in position for writing theuppermost line of the address on an envelop. Fig. 2 is a front elevationof the same. Fig. 3 isa view similar to Fig. 1 but with some partssectioned away and with the mechanism in the position it occupies whenwriting the lowermost line on the envelop. Fig. l is a fragmentary frontelevation showing the parts in the same position as Fig. 3. Fig. 5 is anisometric view of the work holder and guide and some parts of the platenframe. parts being broken away.

My invention can be adapted to various styles of typewriting machines.but l have here shown it applied to a Smith Premier No, 10 typewriter.This machine comprises a top plate 1 having a stationary carriage rail'2 mounted on standards 3 on said top plate and grooved to receiveanti-friction Specification of Letters Patent.

Patented A11 22, 1916.

Serial No. 97,759.

balls 4 on which a carriage 5 is adapted to travel by means of groovedrails constituting a part of the carriage. The machine includes a rollerplaten 6, the shaft 7 of which is journaled in end pieces 8 of adetachable platen frame, which frame also includes an upper longitudinalrod 10 and a lower longitudinal rod 11. said rods connecting the two endpieces. Said platen frame is detachably mounted in the end brackets ofthe carriage by means of certain studs 12 projecting laterally from theend pieces 8 in a manner well known in the art and not necessary here tobe further explained. The rods 10 and 11 are inserted in suitable holesin the end pieces 8 where they are secured by pins 13. The platen isprovided with the usual line space wheel H for cooperation with theusual line space mechanism. Said mechanism is not here shown in all itsparts, but a detent roller 15, cooperating with the wheel 14, is shownin Fig. 3, and a line space handle 40 is shown by broken lines in Fig.2.

In the Smith Premier machine as usually manufactiired, the ordinarypaper feeding devices are mounted on the rods 10 and 11, the usual pape'apron and lower feed rolls being mounted on the rod 11 and the paperfingers on the rod 10. In the present instance these ordinary paper feeddevices are dispensed with or removed, which can be done by removing thepins l3.at' one end of the platen frame and thereby removing one of theend pieces 8.

My work holder comprises two bands or split rings 16 each of whichembraces the platen but does not quite encircle it, aspace 17 being leftbetween the two ends of the ring. Each of these rings is elastic and inits natural state. its internal diameter is slightly less than theexternal diameter of the platen so that when it is put on the platen itembraces the latter tightly enough to hold it frictionally in place onthe platen: but the rings can move with relation to the platen by theexertion of a little force. The two rings or bands 16 are connectedtogether by means of bars. a lower bar 18 and an upper bar 20 beingshown in the present instance. Said bars extend longitudinally of theplaten and preferably are secured to the bands 16 at the ends of saidbands, the bar 18 being secured just below the opening 17 and the bar 20just above said opening; but said bars may be otherwise disposed. Therings or bands 16 and the bars 18 and 20 together constitute a framefrictionally held on the latcn as shown. The bar 20 is preferablyoff-set at 21 toward the platen so that said bar is either actually orsubstantially in contact with the platen and said bar has a clip orclips 22 secured thereto and projecting upward therefrom a shortdistance. In the present instance I have shown several comparativelyshort clips extending across the bar 20 but this arrangement may bevaried. The clips are preferably bent outward at their upper edges or.extren'iities to facilitate the insertion of an envelop or card betweensaid clips and the platen. In the present instance four clips are shown,the two middle ones being preferably made of thin spring metal eachhaving legs 23 extending down across the bar 20'and near their lowerends secured to said bar by rivets 24. The metal. is cut away to form orproduce con'iparatively narrow and widely spaced legs .or members andthe rivets are put near the lower ends of said legs in orderto afford aslight spring action to the clips. These spring clips may be curved intoward the platen as shown at so as to get a sufficient frictional gripon the envelop or card. The two end clips are shown without this inwardcurve and these can be of stiffer material. It will be understood, of

course, that the entire construction of these clips for holding thebottom edge of the envelop or card can be varied, though theconstruction disclosed has been found highly satisfactory in practiceand is therefore preferred.

Cooperating with the envelop or card holder above described is anotherframe mounted on the upper rod 10 of the platen frame. As here shownthis frame comprises two arms :26 rigidly connected together by crossrods 27 and 28, which rods may be secured to the arms 26 in any suitableway as, for example, by being shouldered and riv eted at their ends.Said arms 26 are preferably, but not necessarily, pivoted to the rod 10so that the frame can be turned up away from the platen. Said rod 10 isformed with a groove 29 and the paper fingers are usually mounted onsleeves that are adjustable along said rod and 2210i] of which has a lugthat enters said groove and a spring is provided that reacts betweensaid sleeve and the paper finger to press the paper finger against thepaper. Each of. the arms 26 ashore shown is made of sheet metal curvingdown in front of the platen but not in contact therewith and beneath therod 10 it is formed with an arm or yoke piece 30 bent off horizontallytherefrom and thence bent vertically to form an car 31, which car isalso pivotally mounted on the rod 10.

The frame can be spring-pressed toward the platen in any suitable way,various means suitable for the purpose being common in the paper fingersof typewriters. For example, between the arm 26 and the car 31 a sleevemay be loosely mounted on the rod 10 and said sleeve may have a lugprojecting therefrom into the groove 29. A spring coiled about saidsleeve may be connected at one end with said sleeve and at the other fend said spring may bear against the yoke bar 30, the spring acting topress the arm 26 toward the platen. Each of said arms at its free endhas an car 34 bent off therefrom and bearing on one of the bands orrings 16 above the bar 20. In the present instance the arms 26 arespaced apart a distance a little less than said rings 16 and the ears 34are therefore bent off toward the respective ends of the platen.

Any suitable stop device 35 is rigidly mounted on each of the bands 16,the one here shown consisting of a plate of sheet metal standing outfrom the ring and having feet 36 bent off therefrom and secured to thering as, for example, by rivets. This stop device, as here shown, ismade of such height that when the platen is turned toward the back ofthe machine it and the ring 16 will be arrested by contact of saiddevice with the bar 10 as shown in Figs. 3 and 5; and when the platen isturned toward the front of the machine said step device is arrestedafter a suitable extent of travel by the lug 34. The stop devices are sodisposed as to allow to the work-holder an extent of motion appropriateto the use to which the device is to be put. In the pres ent instancethe said device is used for writing addresses, an envelop 37 being shownin the machine. In this case the envelopholder has a maximum extent ofmovement sufficient for writing four lines with double line spacing;that is to say, it has a maximum extent of movement of eight teeth ofthe line space wheel 14.

The cross rod 27 of the pivoted frame is a frame rod put in formechanical reasons; but the rod 28 not only constitutes a frame rod butit also constitutes a guide rod for the work piece and it is so disposedthat the i type on the type bars 38 of the typewriter will strike justbeneath this rod.

The frame 26, 27, 28 can, of course, be rigidly mounted on the rod 10and can be made adjustable lengthwise of said rod in any suitable way.It is, however, desirable that the rod 29 be held about the properdistance from the platen, and this is readily brought about by pivotingthe frame and having it spring-pressed towaid the platen, as shown, thefree end of the frame, where the rod 28 is located, resting on the rings16. Moreover, the construction actually adopted facilitates theadjustment of the frame lengthwise of the platen, said frame being thusadjustable by merely sliding it along the rod 10 in the same way thatpaper fingers are adjusted. If said frame were rigidly mounted on therod 10, but with provision for adjustment along said rod, the groove orother securing means, would require to be located with accuracy and theparts would have to be fitted with nicety in order to hold the bar 28 atthe right distance from the platen. lVith the parts constructed asshown, all this precision is rendered unneccssa Moreover, the springsprovide friction to retain the frame in its adjusted position, theyprevent rattling, and they allow the frame to yield'in case very stillcards are written on.

It will be understood that the frame 16, 18, 20 is also adjustable bothlengthwise of the platen and also around the platen, the rings beingadapted to slip on the platen upon the exertion of a little force. Theadjustment around the platen can be effected by merely forcing theplaten to turn after the rings have been arrested. at one end or theother of their excursion; and the rings with their bars 18 and 20 andthe frame 26, 2. 28 can be adjusted together lengthwise of the platen.As the arms 26 are arranged between the' stop-pieces endwise pressureagainst either frame will carry the other with it lengthwise of theplaten. It will be, of course, understood that these adjustn'ients arefor the purpose of using different parts of the surface of the platen sothat the wear on the platen will not all come atone place but can bedistributed over the surface thereof.

The arms an be utilized, if desired, as side edge guides for the workpieces so that all of said work pieces can be inserted in the machine inexactly the same way for the sake of uniformity in the writing. Thiswill be especially useful if the machine is equipped with a tabulator. Apart of the ordinary tabulator of the Smith Premier machine is shown inEig. 1 at 41.

In operation. the platen is turned toward the back of the machine untilthe work holder has been carried as far up as it will go, that is tosay, to the position shown in Figs. 3 and 4.. The envelop is theninserted by the mere act of pushing it down between the platen and therod 28 until the lower edge of the envelop comes behind the clipsQ'Z-and is arrested by the upper edge of the bar 20 which bar acts as anend stop for the work piece. The platen is then turned toward the frontof the machine, by manipulation of one of the finger wheels 39. to theposition shown in Figs. 1 and 2 where it is ready for writing the firstline as shown in Fig. 2. The platen is then turned by means of the linespace handle 40 to the position for writing the second. line and by thesame means to write the third and fourth lines. lVhen the fourth linehas been written the envelop and holder stand as shown in Figs. 3 and 4.The envelop is then withdrawn from the holde' and another envelop is setinto place and the platen turned back to write the first line as before.

It will be notedthat the device is of very simple construction and thatin putting it on the machine no structural changes whatever are requiredto be made-in said ma chine. The work holder is merely sprung over theplaten and slipped along to a suitable position thereon and the' upperframe 26, 27, 28 is slipped on the rod 10 in the same way as the paperfingers. This makes the device extremely easy to manufacture as anyplaten frame can be made up with this device on it without making anydifference in the process of manufacture of said frame; and it is withinthe power of a repairman to remove the ordinary paper feed devices froma platen frame that has been equipped therewith and to substitute thedevices herein shown and described. Moreover, the device is extremelyconvenient in use, enabling writing of the character for which it isadapted to be effected with a maximum of convenience and rapidity andwith entire uniformity. It will be noted that the envelop is removedfrom the device by merely pulling it out and that the operation ofinserting a new envelop consists simply of one movement, namely, theenvelop is pushed down behind the rod 28 until arrested by the bar 20.

Various changes can be made in the details of construction andarrangement without departing from my invention.

lVhat I claim as new and desire to secure by Letters Patent, is

1. In a. typewriting machine, the combination with a rotatable platen,of a work holder frictionally held on said platen so as to turn with theplaten but capable of slip ping on the platen, and arresting means forsaid work holder.

In a typcwriting machine, the combinatiorfwith a platen, of a workholder frictionally mounted on the platen so as to turn therewith butcapable of being slipped on and relative to the platen, and means forlimiting the rotatory motion of said work holder in two directions.

In a typcwriting machine, the combination with a platen and platenframe, of a work holder comprising two split rings and a connectingcross bar, and clips on said cross bar, said split rings frictionallyen'ibracing said plated; and a work guiding and work-holder-arrestingframe mounted on said platen frame.

4. In a typewriting machine, the combination with a platen and platenframe, of a work holder comprising two rings embracing said platen and aconnecting cross bar, stops on said rings, cooperating stop devices, anda transverse work-guiding rod.

5. In a typewriting machine, the combination with a platen and a platenframe, of a work holder comprising two rings embracing said platen and aconnecting cross bar, stop devices on said rings, and a cooperatingframe having stops for cotiperating with said stop devices and havingalso a work guiding bar. I

6. In a typewriting machine, the combination with a platen and a platenframe, of a work holder comprising two rings embracing said platen and aconnecting cross bar, stop devices on said rings, and a cooperatingframe having stops for cooperation with said stop devices and havingalso a workguiding bar, said work holder and said frame being adjustablelengthwise of the platen.

7. In a typewriting machine, the combination with a platen and platenframe, of a work holder mounted on said platen and adjustable lengthwisethereof, and a pieroted frame mounted on said platen frame andadjustable lengthwise of said platen and spring-pressed against saidwork holder, said pivoted frame including a worlcguiding bar.

S. In a typewriting machine, the combination with a platen, of a workholding device comprising a longitudinally arranged bar supported by theplaten in position to serve as an end stop for a work-piece, and aspring clip having a continuous plate-like portion and dependingresilient spaced members, said members secured to the face of said barand said platelike portion projecting beyond the bar in position toengage said work-piece.

9. In a typewriting machine. the combination with a rotary platen, ofwork feeding means comprising two frames, one of which is integral andself-gripping on the platen so as to turn therewith, and the other ofwhich is relatively stationary, and stops carried by both said frames.

10. In a typewriting machine, the combination of a carriage frame, aplaten mounted to rotate therein. work feeding means comprising twoframes, one of which is mounted frictionally on the platen, and theother of which is mounted on the carriage frame, and stops carried byboth said frames.

11. In a typewriting machine, the combination of a carriage frame, arotary platen, a work holding frame frictionally mounted on the platen,and a coiipe'ating pivoted spring-pressed frame frictionally mounted onthe carriage and comprising a workguiding bar 28 extending across theface of the work, both said frames being mounted for simultaneousadjustment lengthwise of the platen, and one of said frames beingadapted for adjustment circumferentially of the platen.

12. In a typewriting machine, the combination of a carriage frame, aplaten mounted to rotate therein, a work holding frame frictionallymounted on said platen, and a cooperating frame frictionally mounted onthe carriage frame and comprising a workguiding bar 28 extending acrossthe, face of the work, said two frictionally mounted frames interlappingand adjustable together as one.

13. In a typewriting machine, the combination of a carriage frame, aplaten mounted to rotate therein, a frame frictionally mounted on saidplaten, a spring pressed frame frictionally mounted on the carriageframe and comprising forwardly extended arms arranged between upstandingstop devices on the first mentioned frictionally mounted frame.

14. In a typewriting machine, the combination of a carriage frame, aplaten mounted to rotate therein, a work holding frame mounted on saidplaten and provided with upstanding stop members, a supplemental framemounted on the carriage frame and having forwardly extended armsprovided at their free ends with stops to engage the stop devices on thefirst mentioned frame when the platen is rotated backwardly.

15. In a typewriting machine, the combination of a carriage framecomprising a longitudinally extending bar, a frame mounted on said barand comprising for ardly extended arms provided at their extremitieswith stops, a-platen. and a work holding frame thereon provided withcooperating stops.

16. In a typewriting machine, the combination of a carriage frame,comprising a longitudinally extending bar, a frame mounted on said barand comprising forwardly extending arms one at least of which isprovided with a stop at its extremity, a platen mounted to rotate insaid carriage frame, a work holder mounted on said platen and providedwith a duplex stop member, one stop of said member being adapted toengage the said carriage bar, and the other stop being adapted to engagesaid stop at the extremity of the said forwardly exwork-guiding bar,spring means for pressing said pivoted frame toward the platen, meansfor limiting the motion of said frame under the pressure of said springmeans so as to hold said bar out of contact with said platen; and acooperating work-holder mounted on said platen.

Signed at Syracuse, in the county of Onondaga and State of New York,this 12th day of May, A. I). 1916.

HERBERT A. CARHART.

